Comparison of Two Methods for Measuring Air Specific Heat Capacity in College Physics Experiments
Experiments are an important part of the cultivation of scientific literacy,and some local colleges and universities will deliberately cultivate the scientific literacy and experimental exploration ability of college students in the process of cultivating physics normal students.Among them,carrying out university physics experiments is an important part of the cultivation of scientific literacy.The mechanical-thermal experiments of university physics experiments often include experiments to measure the specific heat capacity ratio of air.On the basis of the sound velocity measurement experiment of the HZDH sound velocity measurement signal source and the SV-DH-7 sound velocity tester,the air specific heat capacity ratio was deduced by the sound velocity formula as a theoretical basis,and the experimental results of the air specific heat capacity ratio were compared with the experimental results of the air specific heat capacity ratio determined by the DH4602 gas specific heat capacity tester.By comparing the operation steps of the two methods and the measured results,it is finally obtained that the air specific heat capacity ratio measured by the DH4602 air specific heat capacity tester is smaller than that measured by the sound velocity measurement method,and has higher accuracy.
specific heat capacity ratio of airsound velocity methodvibration method
万方数据
维普
